Mazda M6 RX8 Key Replacement Guide

Last updated: August 2026 · Verified OEM part numbers

Quick answer: The Mazda M6 RX8 (various model years) uses the KPU41788 313.8MHz 4D63 Chip 3+1 Button Flip Remote Key for Mazda M6 RX8 — verified against OEM part numbers. See the full compatibility table below.

Compatible keys for Mazda M6 RX8

Before you order

• Match the year range — Mazda changed key systems across model years. Check your registration year.
• Check your current key — the OEM number printed on your key matches the table above.
• Programming — smart keys need a compatible programmer (Xhorse, VVDI, Autel). We can advise which one works for each key.

Frequently asked questions

Which key fits my Mazda M6 RX8?

The Mazda M6 RX8 (various model years) uses the KPU41788 313.8MHz 4D63 Chip 3+1 Button Flip Remote Key for Mazda M6 RX8. Check the table above for all compatible options, verified against OEM part numbers.

Do you supply Mazda M6 RX8 keys wholesale?

Yes. We supply locksmiths and key distributors at wholesale prices with MOQ from 5 units. Message us on WhatsApp for today's price list.

Can a Mazda M6 RX8 key be programmed without the dealer?

In most cases yes, using tools like Xhorse, VVDI or Autel. We can advise the right programmer for each key SKU.

Related: All Mazda keys · All guides · Key Finder

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